1.5 kW bidirectional clamp for 12 V rails
The 1.5SMC16CAHM6G: Its 13.6 V reverse standoff voltage sits just above a nominal 12 V supply, so it stays transparent during normal operation and only conducts when a transient pushes the rail above its breakdown threshold.
Clamping voltage and peak current
Breakdown starts at 15.2 V minimum, and the clamping voltage is held to 22.5 V maximum at the rated 70 A peak pulse current. That 22.5 V ceiling means a 12 V ECU or sensor module sees its input clamped well below the typical 30 V abs-max of downstream ICs — the TVS absorbs the surge before the regulator or MCU takes the hit.
AEC-Q101 qualification certifies this part for automotive stress grades — the -55 °C to 150 °C junction temperature range covers under-hood and engine-bay thermal profiles without derating the surge capability.